From: Liu Yuan <tailai...@taobao.com> v3: - include discard patch for easy review and merge - update the comment typo - get variable 'idx' definition more clear
v2: - correct 'end' calculation - get the longest unallocated area - replace SECTOR_SIZE with BDRV_SECTOR_SIZE PATCH 1/3 is the previous distard patch which implement .bdrv_co_discard PATCH 2/3 is ia prepare patch PATCH 3/3 implement .bdrv_co_is_allocated Thanks, Yuan -- 1.7.9.5